evaluate 11.5x + 10.7y when x = 3 and y = 4

Answer:

The answer is 1168

Step-by-step explanation:

(4^5)+(12^2)=1168

Answer:

1168

Step-by-step explanation:

4^5 is 1024

12^2 is 144.

1024+144=1168

Answer:

B

Step-by-step explanation:

Hi,

Your slope is in front of the x and your y-intercept is what's being added or subtracted. In this case, 4x is your slope, and +1 is your y-intercept which means that B is correct.

I hope this helps :)

Answer:

Not sure about the first one, but the second one in inches and the third one is liters

Answer:

what are the options so can help?

Answer:

1. 15

2. 15

3. 13

4. 11

5. 14

6. 11

7. 18

8. 19

9. 18

10. 14

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

8.763 – 5.4

9 – 5 = 4

Answer:

x = 5

Explanation:

2x + 10 = 20

2x = 20 - 10

2x = 10

x = 10/2

x = 5

Answer:

X is: 5

Step-by-step explanation:

5+5= ten and ten 2x is 20.

The critical points are (0, 0) and (1/2, 1/8).

To find the critical points of the function f(x, y) = 8x^3 + y^3 - 6xy + 2, we need to find the points where the partial derivatives of f with respect to x and y are equal to zero.

a.) Finding the critical points:

∂f/∂x = 24x^2 - 6y = 0

∂f/∂y = 3y^2 - 6x = 0

From the first equation, we have:

24x^2 - 6y = 0

4x^2 - y = 0

y = 4x^2

Substituting y = 4x^2 into the second equation:

3(4x^2)^2 - 6x = 0

48x^4 - 6x = 0

6x(8x^3 - 1) = 0

This gives two possible cases:

6x = 0, which implies x = 0.

8x^3 - 1 = 0, which implies 8x^3 = 1 and x^3 = 1/8. Solving this equation, we find x = 1/2.

For x = 0, we can substitute it back into y = 4x^2 to find y = 0.

So, the critical points are (0, 0) and (1/2, 1/8).

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Answer:

Step-by-step explanation:

its 212123s\

Answer:

after it has been enlarged 3 times

The required answer is: s(t) is increasing by 0.1778 ft/sec. A balloon is rising vertically above a level, straight road at a constant rate of 5 ft/sec. Just when the balloon is 74 ft above the ground, a bicycle moving at a constant rate of 13 ft/sec passes under it.

Let x be the distance covered by the bicycle in t seconds and y be the distance covered by balloon in t seconds. y(t) = 74 + 5t and x(t) = 13t.

The distance s between the bicycle and balloon at time t seconds is s(t) = √[(13t)^2 + (74 + 5t)^2].

Differentiating s(t) w.r.t t, we getds/dt = [1/(2√[(13t)^2 + (74 + 5t)^2])][2(13)(13) + 2(74 + 5t)(5)]

Now we need to find the value of s(t) after 6 seconds, i.e., at t = 6s(6) = √[(13(6))^2 + (74 + 5(6))^2]= √[169(36) + 104^2]= √(15257)

Now we need to find the value of ds/dt when t = 6ds/dt = [1/(2√[(13(6))^2 + (74 + 5(6))^2])][2(13)(13) + 2(74 + 5(6))(5)]= [1/(2√(15257))][544 + 740]= 0.1778 ft/sec (approximately)

Therefore, the required answer is: s(t) is increasing by 0.1778 ft/sec.

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h = 15

just plug in the numbers for the corresponding letters and then solve to get h by itself

Answer:

Step-by-step explanation:

5(x+1), when expanded, becomes 5x + 5, which is ot the same as 5x + 1.

In the 1984 domestic violence study conducted by Sherman and Berk, the ethical concern was that they potentially withheld a beneficial treatment.

The domestic violence study conducted by Sherman and Berk in 1984 raised an ethical concern in that they financially profited from the research. This raises the question of whether their motives were purely altruistic or whether they were driven by financial gain. Additionally, the study did not adhere to special protections for vulnerable populations such as women and children who may have been victims of domestic violence. This raises concerns about the validity and generalizability of the study's findings. Furthermore, the study potentially withheld a beneficial treatment, which raises questions about the ethical responsibility of researchers to ensure that their subjects receive the best possible care. Finally, there are also concerns that the researchers may have deceived their subjects, which raises questions about the integrity and transparency of the research process. In conclusion, the ethical concerns raised by this study highlight the need for researchers to carefully consider the impact of their research on vulnerable populations and to ensure that they adhere to the highest ethical standards.
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The new confidence interval at a 90% confidence level is (0.428, 0.572).

The survey of 116 students was randomly selected on a large university campus.

They were asked whether they use a laptop in class to take notes. The survey outcome shows that 58 out of 116 students replied positively, giving an approximate 95% confidence interval of (0.409, 0.591).

(a). How would the confidence interval change if the confidence level had been 90% instead of 95%?

The new confidence interval would be calculated as given below:

Let's calculate the confidence interval at 90% confidence level.

z0.05 = 1.645

n = 116p-hat

   = 58/116

   = 0.5

Standard error = √(pq/n)

                         = √((0.5*0.5)/116)

                         = 0.0433

Margin of error = zα/2 (standard error)

                         = 1.645 * 0.0433

                         = 0.0712

New confidence interval = (p-hat - margin of error, p-hat + margin of error) = (0.5 - 0.0712, 0.5 + 0.0712)

= (0.428, 0.572)

The new confidence interval at a 90% confidence level is (0.428, 0.572). Therefore, the new confidence interval would be (0.428, 0.572).

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The new confidence interval would be narrower, as it has a lower critical value.

The 90% confidence interval is given as follows:

(0.424, 0.576).

A confidence interval of proportions has the bounds given by the rule presented as follows:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which the variables used to calculated these bounds are listed as follows:

The confidence level is of 90%, hence the critical value z is the value of Z that has a p-value of \(\frac{1+0.9}{2} = 0.95\), so the critical value is z = 1.645.

The parameters for this problem are given as follows:

\(n = 116, \pi = \frac{58}{116} = 0.5\)

The lower bound of the interval is given as follows:

\(0.5 - 1.645\sqrt{\frac{0.5(0.5)}{116}} = 0.424\)

The upper bound of the interval is given as follows:

\(0.5 + 1.645\sqrt{\frac{0.5(0.5)}{116}} = 0.576\)

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The three numbers that are in both sequences between 20 and 40 would be 25 , 31 , and 37 .

When given the sequence of 2 n - 1, the terms between 20 and 40 would be : 21 , 23 , 25 , 27 , 29 , 31, 33, 35, 37, 39.

For the sequence 3 n + 1 , the terms between 20 and 40 are : 22, 25, 28, 31, 34 , 37 .

The three numbers that are in both sequences would therefore be :

25 , 31 , and 37 .

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Answer:

Trevon would have read 183 pages by then.

Step-by-step explanation:

You multiply by six each week.  For example,

Week 1: 15+6=21

Week 2: 21+12=33

Week 3: 33+18=51

Week 4: 51+24=75

Week 5: 75+30=105

Week 6: 105+36=141

Week 7: 141+42=183

Answer:

The 8th term of the sequence is 255

Step-by-step explanation:

To find the 8th term of the sequence, we have to use the given sequence formula

All we have to do here is to make a substitution

We simply have to substitute the value 8 for n as follows;

a8 = 2^8 - 1

a8 =256-1

a8 = 255

Answer: 1350

Step-by-step explanation:

Answer:

y=1 and x = -12/5 (-12/5,1)

Step-by-step explanation:

y = –5/4x – 2

if x= -12/5

then

y = -5/4×-12/5 -2

y= 1

I.e 1=1 .

Answer:

\(Slope (m) = -\frac{2}{3}\)

Step-by-step explanation:

To find the slope of the line of the graph, pick any 2 points on the line as your coordinate pairs.

Thus, on the line, let's pick 2 points as our coordinate pairs at:

When x = -6, y = 5 => (-6, 5), and

When x = 3, y = -1 => (3, -1)

Let (-6, 5) be (x1, y1), and (3, -1) be (x2, y2)

\( Slope (m) = \frac{y2 - y1}{x2 - x1} \)

\( Slope (m) = \frac{-1 - 5}{3 - (-6)} \)

\( Slope (m) = \frac{-1 - 5}{3 + 6} \)

\( Slope (m) = \frac{-6}{9} \)

\(Slope (m) = -\frac{2}{3}\)

Answer:

480 grams

Step-by-step explanation:

Set a proportion: if 150 cm of the copper pipe weighs 800 grams, 90 cm of the copper pipe weigh x.

Let's find x:

150 cm : 800 grams = 90 cm : x

x = (800×90)÷150 = 480 grams

Answer:

480g

Step-by-step explanation:

the person above me is correct I checked the math.

Answer:

43/10 pounds = 4 3/10 pounds

Step-by-step explanation:

for this you want to subtract 6 7/10 minus 2 2/5. You first have to get a common denominator and find the numerator then subtract.

Jebb is 6 feet 4.5 inches tall.

What is height?

The distance between the bottom and top of an object or person is a measurement of its height.

Height, altitude, and elevation all refer to the vertical distance, either between the top and bottom of something or between its base and something above it. Height is a term for something that can be high or low and is measured vertically.

Given: Jebb is the tallest player on the basketball team.

He is 1 1 /2 times as tall as the shortest girl in the sixth grade, who is 4 1 /4 feet tall.

Here

1 1/2 times 4 1/4

change to improper fractions

\(1\frac{1}{2} = \frac{(2)(1)+1}{2}= \frac{3}{2}\)

\(4\frac{1}{4}= \frac{(4)(4)+1}{4} = \frac{17}{4}\)

⇒  1 1/2 times 4 1/4  is (3/2)*(17/4)

\(\frac{3}{2}(\frac{17}{4})=\frac{51}{8}\)

Convert 51/8 into improper fraction.

\(\frac{51}{8} = 6\frac{3}{8}\)  feet tall.

3/8 of 12 inches is,

\(\frac{3}{8}(12) = \frac{36}{8}\)

Convert 36/8 into improper fraction

\(\frac{36}{8} = 4\frac{4}{8}\)  inches

Here 4/8 = 0.5

⇒ \(4\frac{4}{8} = 4.5\)

Hence, Jebb is 6 feet 4.5 inches tall.

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According to the given statement , the heart beats 4,860 times in 1 minute.

The heart beats 81 times per minute. To find how many seconds it beats in 1 minute, we multiply 81 by 60 (since there are 60 seconds in a minute).

Step 1:

Multiply 81 by 60.
81 * 60 = 4,860

Step 2:

The heart beats 4,860 times in 1 minute.

The heart beats 4,860 times in 1 minute.

1. Multiply 81 by 60 to get the total number of beats in 1 minute.
2. The heart beats 4,860 times in 1 minute.

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The heart beats 4860 times in 1 minute, or in other words, the heart beats 4860 beats per minute.

The heart beats 81 times in 1 minute.

To find out how many seconds the heart beats in 1 minute, we need to multiply the number of beats (81) by the number of seconds in 1 minute.

There are 60 seconds in 1 minute, so we can set up a proportion to solve for the number of seconds:

81 beats / 1 minute = x beats / 60 seconds

To solve this proportion, we cross multiply:

81 * 60 = x * 1

This simplifies to:

4860 = x

Therefore, the heart beats 4860 times in 1 minute, or in other words,

the heart beats 4860 beats per minute.

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Answer:

You need to add more information that that. It's too confusing when you put it like that.

Step-by-step explanation:

Answer: girl i'm tryna figure this out too

Step-by-step explanation:

Answer:

FG=BD

Step-by-step explanation:

hope this helps!!

Answer:

Step-by-step explanation:

9

1. ∠ACB ≅∠ECD ; vertical angles are congruent (A)

2. C is midpoint of AE ; given

3. AC ≅CE; midpoint divides the line segment in 2 congruent segments (S)

4.AB║DE; given

5. ∠A≅∠E; alternate interior angles are congruent (A)

6. ΔABC≅ΔEDC; Angle-Side-Angle congruency theorem

10

1. YX≅ZX; given (S)

2. WX bisects ∠YXZ; given

3. ∠YXW≅∠ZXW; definition of angle bisectors (A)

4. WX ≅WX; reflexive propriety(S)

5. ΔWYX≅ΔWZX; Side-Angle-Side theorem

The pattern for the sequence 8, 17, 26, 35, 44, … is 9n - 1

The pattern in the question is given as

8, 17, 26, 35, 44, …

In the above expressions and pattern, we can see that

The current term is added to 9 to get the next term

From the above, we have the following

This means that the pattern is an arithmetic sequence with the following features

a = 8

d = 9

An arithmetic sequence is represented as

f(n) = a + (n - 1)d

When the values of "a" and "d" are substituted in the above equation, we have the pattern to be

f(n) = 8 + (n - 1)9

So, we have

f(n) = 8 + 9n - 9

Evaluate

f(n) = 9n - 1

Hence, the pattern for the sequence is 9n - 1

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Answer:

x=5

Step-by-step explanation: